# Restored reliable Gemini file uploads

> We resolved a 400 error caused by message formatting for file Part objects in Gemini (Vertex AI) uploads. Uploads now work as expected, unblocking multimodal use cases.

- Published: 2026-01-19
- Author: Agno Team
- Category: Changelog
- Canonical: https://agno-com-nine.vercel.app/articles/restored-reliable-gemini-file-uploads
- Markdown: https://agno-com-nine.vercel.app/articles/restored-reliable-gemini-file-uploads.md

We resolved a 400 error caused by message formatting for file Part objects in Gemini (Vertex AI) uploads. Uploads now work as expected, unblocking multimodal use cases.

Details:

- No action required; existing integrations resume normal behavior
- Applies to Gemini file inputs via Vertex AI

Who this is for: Teams relying on Gemini for multimodal processing and document-aware workflows.